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Re: the total surface area of the cylinder in the diagram [#permalink]
Expert Reply
Not sure it is wrong.

if you calculate the SA with the meters provided in the figure you will end up in decimals

81.64 cm^2 of course

B is the answer.

A little bit off but not the end of the world. Still a good question to practice
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Re: the total surface area of the cylinder in the diagram [#permalink]
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